You need nightly to try these mods, they will not work on older versions. Check the thread/readme for specific versions/extended/etc.

If there are no instructions, you probably just need to extract the contents to your OpenXcom Mods folder (Documents\OpenXcom\mods) and then enable the mod in the Options > Mods screen. If there's no mods folder, you have the wrong version.

If your mod is in active development it MUST be tagged as such, or better, released in the WIP forum.having a thread in both forums is fine, but releasing experimental and/or game-breaking material here is a big no-no.